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Murrr4er [49]
3 years ago
11

PLEASE HELP ASAP 25 PTS

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
5 0

The horizontal line has equation y=3. The line is solid, and everything below it is shaded, which translates to the inequality y\le3. (so not B nor D)

The dashed line must have equation y=2x-1. Because it's dashed, the inequality is strict. Pick any point in the shaded region, (0, 0) for instance, and compare both sides of this equation. (0, 0) means both x=0 and y=0, so on the left side we have 0, and on the right we have -1. 0 > -1, so the inequality must be y>2x-1.

This means the answer is A.

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Stephen's lunch bill is currently at $8.23.Stephen orders a fruit salad for take-out ,and wants to leave$2.25 as a tip for his s
emmainna [20.7K]

Stephen will receive $4.52 in change

8 0
3 years ago
Which points lie on the line whose equation is 8x - 2y + 7 = -9? Select all that apply.
Anestetic [448]

Answer:

A.(-2, 0)

C. (-1.4)

Step-by-step explanation:

we know that

If a point lie on the line, then the point must satisfy the equation of the line (makes the equation true)

we have

8x-2y+7=-9

subtract 7 both sides

8x-2y=-9-7

8x-2y=-16

divide by 2 both sides

4x-y=-8

Substitute the value of x and the value of y of each point in the linear equation and analyze the result

<u><em>Verify each point</em></u>

case A) we have

(-2, 0)

For x=-2, y=0

substitute

4(-2)-(0)=-8

-8=-8 ---> is true

so

the point lie on the line

case B) we have

(1, 3)

For x=1, y=3

substitute

4(1)-(3)=-8

1=-8 ---> is not true

so

the point not lie on the line

case C) we have

(-1, 4)

For x=-1, y=4

substitute

4(-1)-(4)=-8

-8=-8 ---> is true

so

the point lie on the line

case D) we have

(1, -4)

For x=1, y=-4

substitute

4(1)-(-4)=-8

8=-8 ---> is not true

so

the point not lie on the line

case E) we have

(0, -1)

For x=0, y=-1

substitute

4(0)-(-1)=-8

1=-8 ---> is not true

so

the point not lie on the line

7 0
3 years ago
2/5 is larger than 1/4. What is the difference?
Mila [183]
If you convert the fractions to ___/20 then you will see. Here; 2/5 = 8/20. 1/4 = 5/20. I hope this helps. 
6 0
3 years ago
I need help solving this I just can’t get the right answer
hodyreva [135]

Answer:

-1.99, 1.99

Step-by-step explanation:

Use a table to find the z-scores.

For the first z-score:

P(x < z) = 0.0233

z = -1.99

For the second z-score:

P(x > z) = 0.0233

P(x < z) = 1 − 0.0233 = 0.9767

z = 1.99

7 0
3 years ago
Please help with these last two questions
const2013 [10]
What is x so i can solve it
3 0
3 years ago
Read 2 more answers
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